Selective transmission mechanism.



A. R. ROGERS.

SELECTIVE TRANSMISSION MECHANISM APPLICATION FILED L31, 1913.

1,109,305, Patented Sept. 1, 1914.

2 SHEETS-SHEET 1.

Inventor Witnesses Attorneys A. R. ROGERS.

SELECTIVE TRANSMISSION MECHANISM;

APPLICATION FILED MAR.31, 1913.

1,109,305. v Patented Sept.1,1914.

2 SHEETS-SHEET 2.

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y I Attorneys THE .IVRRIS PETERS COQ'PHOro-urna. WASHINGION. D. c.

3 Y and repairg,

trolledfshaft of an explosiv gin and a rear axle, there bemg-prov ded a counter a details ofconstruction'hereinafter de sci'ibed 1 ARTHUR R; osses; or aounsronr, Mains) A o sELEc'rxvnfTnANsMIssIoN ft 0 T alleufiom it may concern 1 a citizen of the United States, residing alt;

onesp'ort, in the v county ofNVashingtoni and State of Maine,"have' inventedv anew and. useful Selective Transmission Mecha nism, of whichtheffollowing is ,a specifica tion. t

a j Thepresent invention relatesto improvements in selective transmiss on mechanlsm," one object of the present nventlon be ng the 'fprovision of a transmission, mechanism: in

which various speedsand yi'everse may be properly selected, withoutf'the necessity of successive action from one-power transmitj tingmeans 'to fthe other, there beingpro vided means for removing the "connecting: member so that the same, may be moved to the desired selected point before the release thereof, the release thereof automatically causing the "engagement of such means; through the selected power transmittingv elei l 1 ing to the drive axlegof the automobile; and" 80,

ment. '7

- A further object of the' present invention.

'is to 'prIovidejan eflicient means for lockingthe retracting device, whereby the same may v:

notbe projecteduntil it has'bleen moved --to the selected positionr v;

\ A stillffurther object of the} present 1nvention is the provisionof afselective transmission in which the a parts are so mounted, as'tO prevent 'the usual; gear tQELIIIIg as 1n i vthe present] form of transmission gear, I and i in which themoving partsf'are-jso mounted asito "be readily accessible lfforf "adj ustment,

' A till mai er" bb ea of; the inventi n is i the provision of a transmission,mechanism which is readily connected between the ,driv-f ing shaft, as forinstancej' the clutch cone driven shaft," such driven" shaft being disposed in axialjalinement withthe driving shaft andconnected inan automobilestructure through the differential gearing to the shaft having disposed thereupon the respec-' tive' select'iv'epower transmitting elements which are connected atall. tinieswith the ,5 0

Specification of Letters iat enc." latnted Sept- 1, 1914. lpplicatioii filerlmarchfil, 1913i} Seria1No.'757,84. a

Icha'nges in theprecise embodiment of the i q s i r, and claimed,tj it I being dunderstood that L'Be it knownthat'l, UR R. RoGERs, a'l

invention herein disclosed can beihadewiththe scope'of'What-isclaimed without departlng from: the spirit 'ofthe invention. I Inthe drawingsFigure1 is a view illus trating the control mechanisin o'f a casing the par s benigns degeievaioa Fig. 2 is 1 1 zontal sectlonalview throughthe complete I a frontendfview thereoffl Fig. '3 isfahorivcasing v and' the "transmission parts thereof; 7 Fig, l ls'a section taken on line H of Fig:

3; Fig. '5 is 'an' enlar geddetailview of the plvoted pawls or the power transmitting element engaging means.v

designates a driving. shaft, whiches usual is connected through a clutch (not shown) to the prime mover, the same when in autonected as usual through adiiferential gear,-

3 the: transmission mechanism carrying caslng'. I

1 within the casing 3 is a sleeve 4 having a no seless chain sprocket; 5, the bushingG being lncased' 1n the; sleeve 4 about the end Referring to the drawings, the nu meralfl I Keyed upon rotatable withthe shaft of the drivenljshaft' Q/aIid forming a bearing for'thefiinnerendjthereof within the has h1g3; 2'

'11 Keyed,upon the 2 witliin the casing 3:, are the reverse noiseless sprocket wheel '7 the first speedgear8, the intermediate, 1

speed gear 9, and the high speed g'earql 0.

Aan'oiseles's chain 11 connects the drive sprocket 5 to the sprocket 12, which is h1g3, are ,thereversesprocket 14, and the forward gears'l5, IG' andv 17, a. chain (not shown) of the noiseless ty e being disposed to connect" the sprocket i shaftto the 'sprocketlc of the counter shaft,

" of the driven While thegears 15, 16 and l'? are in mesh i at all times with the gears 8, 9and l0, 1e

ispectively. ;The' portion" ofv the jshaftllS 3 within the 'casing 3' is' provided with the longitudinal slot ,QOjWhile' formed infthe 'adjacentportion of the hubs of the gears I 1 ex anses flat double" prong spring" 29.;

for pawls 23 is providedwith thehooked is fitted the springj37 "upon the rod'f35, said fy 1 gage the selected gear.

posed to'project between the sections'of the block 21 to be'engaged the inclined faces ing members orpawls 23. Each one of the. respective pawls 23 18 thus plvoted at 24; "andis held in gear engaging posit on, as:

faces of the selective gears. These ,rings;

,iried upon the actuating rod 355 This actuat ment within the tubular longitudinally slid- 5 35 tracted within the slot 200i the shaftl3 so I that the block 21. may be moved in either d1;

pawls 23 intoengagement with theselected ear.

, upon the free end of the rod and has 1 attached thereto, as shown in Figs. 1 and 2,

14, 1.5, 16 and 17 are the diametricallydisposed recesses or pawl receiving sockets 25, as clearly illustrated inFig, 3.

Mounted for sliding movement within the slot 20 of the shaft 13, is asectional block 21, which is connected by screws 21 v to the tubular rod 31, each one of the sections being. provided with an arm 22, which has pivotally connected thereto, theselect'ive connectshown in Figs. 3 and4, means of the,

Each pawl 23 isprovided with'fa gearengagingportion 25,.whi'chis disposed to seat within its selected recess 26 0f the selected gear, so that thei portions 27' and 28 Wlll abut the inner surfacesof. the respective rings or washer-s18 and 19, there beingtwo ofthes'e connected to the respective opposed thus fol-min reality a hub extension to en-f gage-the shaft 13 and prevent" any knock-i ing due to the rotation of the counter shaftj '13 and" its. slot 20ifiwhenflpassing the, re; 'cesses26f 1 '1 'f Eac'h of the respective locking members inner portion 39, which forms an outer lim- 'iting meansfor the control member 38 caring rod 35 is mounted for sliding move able rod 31, which is securedfinedly' tothe sectional block 21 'byYmeans of the screws 21, as clearly illustrated in Fig. 3. The rod 31 is provided withthe socket 36, in whlch spring normally holding the cone or control member 38 forwardly in the" position, vas shown in Fig. 3, so as to permit the locking pawls 23 to be extended or projected to enf'Each of the respective locking members 23Iis'provided with the abutment '3) upon its inner end, said abutment being CllS- of the cone 38, as the cone is reciprocated, such movement CitUSllIg the gear engaglng end 25 of the lock ng pawl 23.to bererection to place the locking members or pawls in the "next selectedposition, or to permitthe spring 29 to project the locking ,In order to o1 aeratethesliding rod 35, to cause the retractionof the locking neinbers or pawls 23, the grooved 'spool4O is disposed detail operation pending arm 52 beingmounted for the yoked end 58; the "reciprocat'ory arm 57,.said arm 57 being L shapedin elevation and having its long terminal disposed for sliding. movementbetween the plates 45, with its toothed portion 56 disposed to be controlled by the pivoted segment 54, the of which will be presently set forth.;;

, Fastened to the outer end of the longitu- "dinally slidable sleeve 31,, is the grooved member 34, which is connected to the yoke end 53 of the depending arm 52, said desliding movement below the arm 57, as illustrated in Fig. 1. The arm 52 is operably connected at 51 to the'manually' controlled operating lever 49, the same being connected to the supporting means 47 carried by the casing 3. By this means, it will be seen that both arms 52 and 58 are "disposed for simultaneous movement through the operation of the lever 49, but in ordei' that the locking'member 23 may be released primarily or initially before the arm 47 is operated, a lever 61 is pivoted to the operating lever 49, adjacent the hand such linembers'and remove the gear engaging portions 25 from the recesses26'offthe then selected gear. 4 I In order to'lock, land release the link 60', while the lever 49fis 'n1anipulatecl -to move both members 52 and'58, or when it is'desir'ablefto permit 'o'f the movement of the lever 49, a. rod {64 is, connected to the lever 61 at oneend, and a'fpin (55 isdisposed for sliding movement? in, theslotXGG andflis con- Iii'ectedto the'other end ofthe rod, (34. This pin carries the two oppositely disposed pawls] which; are f disposed to 1 engage the teeth 46 oftheftwo spaced arms 45- Thus it iio will'be seen,1thatthe initial movement 'of the lever 61 towardfthehand grip 50, moves the segment- 54' and consequently pulls the rod 35 to cause the locking members orpawls I 231 to be' released, the continued 'jmovement of; the lever 49 releasing the pawls at which time the 'lever 49 can be moved .in 5 either direction to slide simultaneously both jrods 35 and 3lto'movethe' pawls23 to the desired or selected position, i V From' the foregoingdescriptiomtakenin connection with the" drawings, it; is evident that by providing a means for, retracting the; locllzingmember's or .pawls 23,;ai1d maintaining the same in suchiretifacted position,

that the. longitudinally slid'ableirod 31 may v beinanipnlated to move the locking' I mem;

' member of the counter shaft.

bers inthe desired selected position, so that the'pawls or locking members '23 may be" moved for instance from the reversing gear 14 to the high :speed'f gear .17, without the necessity of successively or progressivelyeni gaging the intermediate -gears,fthis feature gears upon the counter shaft, it is impossible for the projecting portions of the selecting locking members '23 to: proj ect. within" therecesses 26 when moving from one position to the other even though the mechanisml for 1 retractingzthe pawls "or locking members "23 should slip. v e What is claimed is":

.1.] A selective transmission mechanism, in-

cluding a casing,ia :drive'ishaft journaled therein, a driven shaftjournaled in the easing and disposed inaXial alinement with the drive shaft, a counter shaft journaled in the casing and operably connected at all times,

to the drive shaft, a plurality of neuy a table power transmitting linembers mounted upon the counter shaft within the casing, a similar number of cooperating power transmitting members keyed to the driven shaft within the casing, a collapsible selecting means carried slidablyby'thecounter shaft for engagement with one of the power transmitting members at a time, said member being normally expanded, manually operated means for collapsing said member, and manually operated means for sliding the member when collapsed to a position for engagement with a selected power transmitting 2. A selective transmission inechanism,in-

eludingv a casing, a drive shaft journaled v therein, a drivenshaft journaled in the easing and disposed in axial alinement with the drive shaft, a counter shaft journaled in the casing and operably connected at all times to the drive shaft, a pluralityoffreely rotatable power transmitting members mounted upon the counter shaft within the casing, agsimil'ar number of 'coiiperating power transmitting members keyed to the a driven shaft within the casing, a collapsible selecting means carried slidably by the "counter "shaft for engagement with one' of the power transmitting members at a time, said member being normally expanded, man- 360 ,ually operated means movable in one directtion for collapsingthe selecting'means, and

manually operablev means for bodily moving the selecting means and-the collapsing means softhat the selecting member may be disposed 1 selected position. c

. {A selective transmission mechanism,v

including a casing, a drive shaft journaled therein, a driven shaftalso journaled there in and disposed in axialalinement to the -drive31shaft, a counter shaft journaled in the casing and operably connected at all times to the driveshaft, saidcounter shaft beingq pj'ro'videjd with a vtransversely disposed slot extending the 'full length ofthe casing and terminating in a central bore through one end-thereof,'aplurality of freely "rotatable, powertransmit'ting members carried by the counter shaft within the casing, a similar number of cooperating power transmitting members keyed to the driven shaft, a'tubular rod slidably mountedin the bore of the counter shaft, a normally expansible icollapsible selecting] membercarried "upon one end of the tubular rod within the slot ofthe counter shaft, said selecting member being provided with means to 'engage' one of" the power transmitting members of the counter shaft'at a time tolock thesame for rotation with the counter shaft, a rod slida'bly'mounted-in [the tubular rod and provided with neansfor collapsing'the selecting member, manually controlledmeans for operating the last rod, and manually controlled means for operating the tubular rod. :1 r

e l. Aselective transmlssion mechanism, in

cludingya casing, a drive shaft journaled therein, a driven shaft also journaled therein and disposed in axial alinement to the.

drive shaft, a counter shaft journaled in the casingand operably connected at all times to the drive shaft, said counter shaft being provided with a transversely disposed slot extending the full length of the casing and terminating in a central bore through one end'thereof, a plurality of. freely rotatable power transmitting members carried by'the counter shaft within the casing, a similar number, of cooperating power transmitting members keyed to the driven shaft, a tubular rod slidably mounted in the hereof the counter shaft, a normally expansible col lapsible selecting member carried'upon one end of the tubular rod within the slot of the counter shaft, said selecting member being provided with means to engage one of the;

power transmitting members of the counter) shaft at a time to lock the same forrotation with the counter shaft, a rod slidably mounted in the tubular rod and provided with means for collapsing the selecting member, manually controlledmeans for operating the last rod, manually controlled means for operating the tubular rod, means for locking both rods against sliding movement, and

means for locking the tubular rod actuating means until the selecting member has been collapsed. i

selective transmission mechanism, including a casmg, a drlve shaft ournaled driven shaft,'a similarnumber of.co6perat- -a countershaft ournaled in the, casing parvupon the counter shaft, ,eachof the latter of the counter shaft, said key being nor mally expanded to engage the keyway of;

therein, a drivenshaft also journaledthere} 1n and disposed in {LX131 alinement thereto,"

allel to the drivingqand driven shafts, a, transmission device operably connecting the; drive shaft to the counter shaft,aplurality of transmission members keyed upon the ingv'transmission members rotatably mounted alselective power transmitting member,j manually controlled means .for collapsing; the key, and manually controlled means for? sliding the key to selected position.

6. A selective transmission mechanism, including a casing, a driving shaft jour-i J casing parallel to the driving :anddriven;

thelat-ter transmission members being pro- "vided .yvitha key-Way adjacent the counter shaft said counter shaft being "provided ture in the *naled therein, a driven shaft jou'rnaledt therein and disposed 1 in axial alinement thereto, a counter shaft jour'naled in the upon the driven shaft, a similar number of cooperating transmission I members rotatably mountedfiupon thewcounter shaft, each of with a transverse slot extending the full "length- L01: the power transmitting member, a

collapsible key slidably mounted in the transverse slot fofthe counter shaft, said "lKGYbBIHgLDOFIDZEllY expandedto engage the key ay of a selected power transmitting member, manually controlled means for collapsing the key,imanually controlled mean's 4 for sliding thexkey to selected position, and

means-for looking the last vmanually controlled i means until! the key h'asfbeen collapsed. o

In testimony that I claim theforegoing as my own, I have 11816130 affixed my signapresence ofrtwo Witnesses. v. ARI=HUR R. ROGERS. Witnessesv -E..B. Smyrna,

'D. "S. iALNDREWS.

Copies of this patent may be obtained for five cents eachjby addressingthe Commissioner of Patents; I 3 Washington; 11 0." 

